<template>
  <a-layout-sider
    :class="['sider', isDesktop() ? null : 'shadow', theme, fixSiderbar ? 'ant-fixed-sidemenu' : null ]"
    width="208px"
    :collapsible="collapsible"
    v-model="collapsed"
    :trigger="null">
    <logo />
    <s-menu
      :collapsed="collapsed"
      :menu="menus"
      :theme="theme"
      @select="onSelect"
      @updateMenuTitle="onUpdateMenuTitle"
      :mode="mode"
      :style="smenuStyle">
    </s-menu>
  </a-layout-sider>

</template>

<script>
import ALayoutSider from 'ant-design-vue/es/layout/Sider'
import Logo from '../tools/Logo'
import SMenu from './index'
import { mixin, mixinDevice } from '@/utils/mixin.js'

export default {
  name: "SideMenu",
  components: { ALayoutSider, Logo, SMenu },
  mixins: [mixin, mixinDevice],
  props: {
    mode: {
      type: String,
      required: false,
      default: 'inline'
    },
    theme: {
      type: String,
      required: false,
      default: 'dark'
    },
    collapsible: {
      type: Boolean,
      required: false,
      default: false
    },
    collapsed: {
      type: Boolean,
      required: false,
      default: false
    },
    menus: {
      type: Array,
      required: true
    }
  },
  computed:{
    smenuStyle() {
      let style = { 'padding': '0' }
      if (this.fixSiderbar) {
        style['height'] = 'calc(100% - 59px)'
        style['overflow'] = 'auto'
        style['overflow-x'] = 'hidden'
      }
      return style
    }
  },
  methods: {
    onSelect (obj) {
      this.$emit('menuSelect', obj)
    },
    onUpdateMenuTitle (obj) {
      this.$emit('updateMenuTitle', obj)
    }
  }
}
</script>
<style lang="less" scoped>

/* update_begin author:sunjianlei date:20190509 for: 修改侧边导航栏滚动条的样式 */
.sider {
  @scrollBarSize: 10px;

  ul.ant-menu {

    /* 定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
    &::-webkit-scrollbar {
      width: @scrollBarSize;
      height: @scrollBarSize;
      background-color: transparent;
      display: none;
    }

    & .-o-scrollbar {
      display: none;
    }

    /* 兼容IE */
    -ms-overflow-style: none;
    -ms-scroll-chaining: chained;
    -ms-content-zooming: zoom;
    -ms-scroll-rails: none;
    -ms-content-zoom-limit-min: 100%;
    -ms-content-zoom-limit-max: 500%;
    -ms-scroll-snap-type: proximity;
    -ms-scroll-snap-points-x: snapList(100%, 200%, 300%, 400%, 500%);

    /* 定义滚动条轨道 */
    &::-webkit-scrollbar-track {
      background-color: transparent;
    }

    /* 定义滑块 */
    &::-webkit-scrollbar-thumb {
      border-radius: @scrollBarSize;
      background-color: #eee;
      box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);

      &:hover {
        background-color: #dddddd;
      }

      &:active {
        background-color: #bbbbbb;
      }
    }
  }

  /** 暗色系滚动条样式 */
  &.dark ul.ant-menu {
    &::-webkit-scrollbar-thumb {
      background-color: #666666;

      &:hover {
        background-color: #808080;
      }

      &:active {
        background-color: #999999;
      }
    }
  }

}

/* update_end author:sunjianlei date:20190509 for: 修改侧边导航栏滚动条的样式 */
</style>

<!-- update_begin author:sunjianlei date:20190530 for: 选中首页的时候不显示背景颜色 -->
<style lang="less">
// 样式覆盖
.ant-layout-sider {
  // background: linear-gradient(180deg, #3971A1 0%, #5782AB 100%) !important;
  background: url(../../assets/menu_bg.png) no-repeat !important;
  background-size: 100% 100%;
  height: 100vh;
  .ant-layout-sider-children {
    // overflow-y: scroll;
    height: 100%;
    overflow: hidden;
    .ant-menu-root  {
      height: 100%;
      overflow-y: scroll;
    }
  }
  .ant-menu-submenu-title {
    span {
      color: #fff;
    }
    i {
      color: #fff;
    }
    .ant-menu-submenu-arrow {
      &::after {
        color: #fff;
        background-image: linear-gradient(to right, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0.65)) !important;
      }
      &::before {
        color: #fff;
        background-image: linear-gradient(to right, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0.65)) !important;
      }
    }
  }
  .ant-menu:not(.ant-menu-horizontal) .ant-menu-item-selected {
    background: rgba(0, 0, 0, 0);
  }
}
.ant-menu.ant-menu-root {
  // 以下重写
  .ant-menu-item {
    i {
      color: #fff;
    }
    span {
      color: #fff;
    }
  }
  & > .ant-menu-item:first-child {
    background-color: transparent;

    & > a, & > a:hover {
      color: rgba(0, 0, 0, 0.65);
    }

    &.ant-menu-item-selected {
      & > a, & > a:hover {
        color: @primary-color;
      }
    }
  }

  &.ant-menu-dark > .ant-menu-item:first-child {
    & > a, & > a:hover {
      color: rgba(255, 255, 255, 0.65);
    }

    &.ant-menu-item-selected {
      & > a, & > a:hover {
        color: rgba(255, 255, 255, 1);
      }
    }
  }
  // 样式覆盖
  background: rgba(0,0,0, 0);
  .ant-menu-sub {
    background: rgba(0,0,0, 0);
    .ant-menu-item-selected {
      background: rgba(255,255,255, .2) !important;
    }
    .ant-menu-item {
      background: rgba(0,0,0, 0);
      span {
        color: #fff;
      }
    }
  }
}
</style>
<!-- update_end author:sunjianlei date:20190530 for: 选中首页的时候不显示背景颜色 -->
